About
Made to be understood.
Crimson Petal Labs makes one product: NAC capsules with a short label and the full specification published, so you know exactly what you are taking.
What we stand by
Full disclosure
The complete label is published online — ingredients, amounts and allergens.
No claims we can’t back
We describe what’s in the product. We don’t promise outcomes.
No lock-in
Subscribe to save, or buy once. Pause, skip or cancel a subscription any time.
Ready when you are.
Up to 50% off sitewide. Subscribe from £19 a bottle, or buy once. Free UK delivery over £50.